Réponse :
1. 24:27 = 2x2x2x3/ 3x3x3 = 8/9
2. 28:63 = 2x2x7/ 3x3x7 = 4/9
3. 24:3 = 2x2x2x3/ 3 = 8/1 ou 8
4. 35:45 = 5x7/ 3x3x5 = 7/9
5. 35:14 = 5x7/ 2x7 = 5/2
6. 56:80 = 2x2x2x7/ 2x2x2x2x5 = 7/10
7. 24:42 = 2x2x2x3/ 2x3x7 = 4/7
8. 33:21 = 3x11/ 3x7 = 11/7
9. 15:24 = 3x5/ 2x2x2x3 = 5/8
10. 60:36 = 2x2x3x5/ 2x2x3x3 = 5/3
11. 18:81 = 2x3x3/ 3x3x3x3 = 2/9
12. 12:32 = 2x2x3/ 2x2x2x2x2 = 3/8
